Setup GitHub workflow for running pytest

.github/workflows/test.yaml

@@ -0,0 +1,30 @@
+name: Tests
+
+on:
+  push:
+    branches:
+      - main
+      - test
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+
+    services:
+      docker:
+        memory: 2G
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Build
+        run: docker-compose build
+
+      - name: Start
+        run: docker-compose up -d
+
+      - name: Test
+        run: docker-compose exec web pytest -v